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    <script>
        // ES6 引入rest参数, 用于获取函数的实参, 用来代替 arguments
        function date1 () {
            console.log(arguments) //对象
        }
        date1('阿乐','阿龙','阿里') 

        //rest参数
        function date2 (...args) {
            console.log(args) //数组
        }
        date2('阿乐','阿龙','阿里')

        //rest参数必须要放到参数最后
        function fn(a,b,...args) {
            console.log(a,b,args)
        }
        fn(1,2,3,4,5,6)
    </script>
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